Yes, I'm afraid so. When laws are repressive, it forces people to hide. Drug use has always existed, and it probably won't go away. Again, there are reasons why people use. Some do it for pleasure, and we can't judge them.
As most of the witnesses have said, there are multiple types of drugs and users, and there are multiple reasons to use. However, preventing people from using or telling them that it's wrong is certainly not the approach that works. Imposing prison sentences or forcing people into detox treatment doesn't work.
People who use drugs still have judgment, and they're able to make decisions with full knowledge of the facts. It's just that they get to a point where they run out of options. If groups and peers with experiential knowledge are there to listen to them and recognize that they are worth helping, these individuals will be able to benefit from an environment that will enable them to make smarter choices, choices that will be better for their health and well-being.